/* 头部header部分 */
.header{
    width: 100%;
    height: 77px;
    background-color: rgba(0, 0, 0, 0.2);
    position: fixed;
    top: 0;
    left: 0;
    z-index: 10;
}
.header-c{
    width: 1200px;
    height: 77px;
    margin: 0 auto;
}
.header-l{
    float: left;
    height: 77px;
    position: relative;

}
.header-l .header-l1{
    position: absolute;
    top: 50%;
    left:50px ;
    transform: translateY(-50%);
}
.header-l .header-l2{
    position: absolute;
    top: 50%;
    left:100px ;
    transform: translateY(-50%);
}
.header-r{
    float: right;
    height: 77px;
}
.r-item{
    float: left;
    margin-right: 36px;
    height: 77px;
    line-height: 77px;
}
.r-item a{
    color:#fff;
    font-size: 16px;
    /* height: 16px;
    line-height: 16px; */
    transition: all .4s linear;
}

.line{
    width: 80%; 
    height: 2px;
    display: block;
    margin: 0 auto;
    margin-top: -10px;

    background-color: #dd1717;
    opacity: 0;
    transition: all .3s ease-in;
}
.r-item:hover a{
    color: #dd1717;
    /* font-size: 18px; */
}
.r-item:hover .line{
    opacity: 1;
}
.r-item.active a{
    color: #dd1717;
}
.r-item.active .line{
    opacity: 1;
}
/* footer底部的位置 */
.footer{
    width: 100%;
    height: 80px;
    background-color: #161616;
    text-align: center;
}
.footer p{
    font-size: 12px;
    height: 80px;
    line-height: 80px;
    color: #fff;
}